Raw, fried, calcined, burnt ash can be, several methods are used. But this itself does not have bactericidal effect, is a certain astringent hemostatic effect, on the ulcer does not necessarily see all effective. If you have Helicobacter pylori, eat this is also useless, because this can not be sterilized. I have said to help you, I have seen a lot of various gastrointestinal diseases, and you doubt me, think I am a liar. This is a small problem, need to be so tossed?